21 
RTLA 1224. Spot, Leiostomus xanthurus 
Material: Three microscope slides from 3 fish; 1 color photograph 
Diagnosis: (1) Thyroid hyperplasia in all fish; (2) gill hyperplasia 
in one fish 
Submitter: G. E. Cosgrove 
RTLA 1225. White perch. Morone americana 
Material: Two microscope slides; 2 color transparencies 
Diagnosis: Bile duct adenofibrosis of probable hepatotoxin origin 
Submitter: T. Beckerman and R. P. Morgan, II 
RTLA 1226. Tiger salamander, Ambystoma tigrinum 
Material: Viscera; internal growth just anterior to the stomach 
Diagnosis: Metastatic pancreatic carcinoma 
Submitter: F. L. Rose 
RTLA 1227. Surf clam, Spisula solidissima 
Material: A portion of the foot with attached growth; 2 color 
transparencies; 1 black and white photograph 
Diagnosis: Multiple polypoid myomas of the foot 
Submitter: L. Leibovitz 
RTLA 1228. Oyster, Crassostrea virginica 
Material: A growth with adjacent tissue 
Diagnosis: Polypoid vesicular tumor and associated inflammation 
Submitter: S. V. Otto 
RTLA 1229. American alligator. Alligator misslssippiensis 
Material: Growth from anterior to left nares 
Diagnosis: Pending 
Submitter: C. A. Ross 
RTLA 1230. Panamint rattlesnake, Crotalus mltchelli 
Material: Four microscope slides; 2 paraffin blocks 
Diagnosis: Multiple subcutaneous mycotic granulomas 
Submitter: G. G. Grispens, Jr. 
RTLA 1231. Striped bass, Morone saxatilis 
Material: Three microscope slides; 4 color transparencies 
Diagnosis: Infectious granulomas in liver and spleen 
Submitter: T. Beckerman and R. P. Morgan, II 
RTLA 1232A & B. 
Material: 
Diagnosis: 
Submitter: 
Milkfish, Chanos chanos 
Four pieces of stomach tissue — 2 pathologic; 2 normal 
Gastritis 
A. G. Smith 
RTLA 1233. Grevalle jack, Caranx hippos 
Material: Seventeen microscope slides 
Diagnosis: Fibroma 
Submitter: F. J. Schwartz 
Reprint: Schwartz, Frank J. A Grevalle Jack, Caranx hippos (Pisces. 
Carangldae), With Mandibular Calcified Connective Tissue 
Fibroma. Chesapeake Sci., ]^(1): 72-3. 1975. 
